Saint Jacques le Mineur, Canada offers 1 beach perfect for sunbathing, surfing, swimming, and more. Saint Jacques le Mineur is not particularly known for travel and beach tourism. The best time to travel to Saint Jacques le Mineur, Canada, is during the summer months of June to August, when the average air temperature is around 20-25°C (68-77°F) and water temperature is approximately 18-22°C (64-72°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!